diff --git a/package.json b/package.json
index a1712e2b12..1edec2bc38 100644
--- a/package.json
+++ b/package.json
@@ -101,7 +101,6 @@
   "dependencies": {
     "array-includes": "^3.1.3",
     "array.prototype.flat": "^1.2.4",
-    "contains-path": "^1.0.0",
     "debug": "^2.6.9",
     "doctrine": "^2.1.0",
     "eslint-import-resolver-node": "^0.3.4",
diff --git a/src/rules/no-restricted-paths.js b/src/rules/no-restricted-paths.js
index e2b11957f7..6409ff57ac 100644
--- a/src/rules/no-restricted-paths.js
+++ b/src/rules/no-restricted-paths.js
@@ -1,4 +1,3 @@
-import containsPath from 'contains-path';
 import path from 'path';
 
 import resolve from 'eslint-module-utils/resolve';
@@ -6,6 +5,11 @@ import moduleVisitor from 'eslint-module-utils/moduleVisitor';
 import docsUrl from '../docsUrl';
 import importType from '../core/importType';
 
+const containsPath = (filepath, target) => {
+  const relative = path.relative(target, filepath);
+  return relative === '' || !relative.startsWith('..');
+};
+
 module.exports = {
   meta: {
     type: 'problem',